One set of security hangers. Used to firmly attach Nielsen style frames to the wall. A special key is then needed to remove the frame. A set consists of two hanger pieces, a lock, a key & instructions. The 10 pack consists of 10 sets but only 1 key (Item SEH10). The 100 pack has 100 sets & 10 keys (Item SEH100). Please note that since wall constuction varies no fasteners are included in the sets. Please choose the appropriate fasteners and wall anchors that will adequately secure the hanger pieces and lock to the wall. Price includes FREE ground shipping with frame order within the 48 cont. states. When ordered without a frame, we will contact you with the shipping charges and request a confirmation on the order total.